Machine for creasing paper-board.



. PATENTED NOV. 17, 1903-.

J. KING, JR. MACHINE FOR GREASING PAPER BOARD.

APPLIGATION FILED MAR. 1. 1902.

2 SHEETS-SHEET 1.

N0 MODEL.

PATENTED Nov. 17,1903.

r 1. KING, JE. MACHINE FOR-GREASING PAPER BOARD.-

APPLIOATION FILED MAR. 1. 1902.

2 SHEETS-SHEET 2,

1 m MODEL.

position.

Unirrsn TATES Patented. November 17, 1903.

'ATENT arts.

MACHINE FOR CREASING PAPER-BOARD.

SPECIFICATION forming part of Letters Patent No. 744,207, dated November 17, 1903. Application filed'March 1, 1902. Serial No; 961209. (No model.)

To aZZ whom, it may concern:

Be it known that 1, JOHN KING, Jr., a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Machines for Oreasing Paper-Board, of which the following is a specification.

This invention relates to machines for creasing cardboard, paper-stock, and the like, and is more especially designed for creasing blanks for the manufacture of knockdown paper boxes; and it has for its object, first, to

provide improved die creasing mechanism for rapidly and effectively creasing heavy stock; second, to combine with such creasingdies improved rotary mechanism by means of which the creasing may be expeditiously and economically effected; third, to provide improved means for so supporting the dies in place that they may be easily and quickly adjusted to crease blanks of diflerent sizes; fourth, to combine with such mechanism means for trimming the blanks simultaneously with the creasing operation, and, lastly, to improve and simplify and render more efficient this class of machines'generally.

To these ends myinvention consists in the features and in the construction, combination, and arrangement of parts hereinafter described and particularly pointed out in the claims following the description, reference being had to the accompanying drawings, forming a part of this specification, wherein- Figure l is a view in side elevation, partly in section, of my improved machine. Fig. 2 is a View in side elevation thereof. Fig. 3 is a top plan view of the creasing and trimming mechanism. Fig. 1 is a transverse sectional view of one of the pairs of creasing-dies, showing said dies in one position. Fig. 5 is a similar view showing the dies in another Figs. 6 and 7 are end views of the female die, showing it in two different positions, corresponding to the positions shown in Figs. 4 and 5; and Fig. 8 is a partial longitudinal sectional view of the cylindrical support or roll carrying the female dies.

Referring to the drawings, the numeral 1 indicates a frame, which may be of any approved or suitable construction, in which are journaled two parallel horizontal shafts 2 and 3, arranged one directly above the other, as shown in Figs. 1 and 2, said shafts having mounted on their ends at one side of the machine gear-wheels 4 and 5, which gear with one another, and any suitable driving mechanism (not shown) being geared to either one of said wheels to rotate both of said wheels and shafts at uniform speed.

Rigidly fixed oneach end of each of the shafts 2 and 3 is a pair of parallel disks or circular plates 6, in the opposite outer faces or edges of which and near the perimeter thereof are formed undercut annular grooves 7. (See Fig. 8.) Adj ustably arranged on the peripheries of each pair of disks 6 is a plate 8, provided on its under side with a dovetailed groove, thus forming at the opposite ends of said plate two depending flanges 9 and 10, the inner sides of which correspond in shape to the shape of the undercut grooves 7. One of said flanges, as 9, fits closelyin the adjacent groove 7,while the other flange, 10,0wing to the dovetailed groove in the plate being wider than the distance between the outer sides of the disks 6, does not enter the corresponding groove 7, but lies opposite it. A key 11, having the shape in cross-section of a rhomboid, is inserted between the flange 10 and the corresponding grooved face 7 of the adjacent disk and is forced to its seat in said groove by a set-screw 12, (one or more,) tapped through the flange 10. 7 screws the plates 8 may be adjusted about the peripheries of thedisk 6 for the purpose hereinafter explained, and by tightening upv said set-screws the plates will be rigidly held in their adjusted positions. The plates 8 are for the purpose of supporting and carrying the dies and are alike on both rolls or cylindrical supports. Also rigidly flxed on the shafts 2 and 3 are a plurality of disks 13, which are disposed intermediate thepairs of disks 6 and have removably attached to their outer portionsas by bolts 14, for example By loosening the set-' segment-shaped plates 15 for the purpose hereinafter explained.

The female dies are constructed and adjustably secured in place as follows: Extending longitudinally of the lower roll and resting on the plates 8 is a bed-plate 16, consisting of a bar longitudinally grooved or channeled on its upper or outer side, as at 17, in which is fitted a bearing block or strip 18. The opposite ends of the bed-plate 16 rest on the plates 8 and are secured to the latter by machine-screws 19, which are tapped through the under sides of said plates. Formed in the upper or outer face of the bearing-block 18 is a longitudinal recess 20, the side walls of which are concave or approximately semicircular in shape, as at 21 and as most clearly shown in Figs. 4 and 5 of the drawings. Rotatably seated in the concave portions of said recess are two parallel rods 22, the opposite ends of which are jourualed in and extend through the ends of the bed-plate 16, as shown in Figs. 6, 7, and 8, and have fixed thereon pinions 23, the pinions of one rod gearing with the pinions of the other, whereby both rods are caused to rotate or oscillate in unison. Each of the rods is longitudinally grooved or channeled, as at 24, thus forming inner and outer shoulders 25 and 26, the two rods being so geared together that during one period of their oscillation the two grooves or channels 24 will register. Attached to the opposite ends of the bed-plate 16 are downwardly or inwardly extending bracket-arms 27, and fixed on the projecting ends of the dies or rods 22 are arms or levers 28. Coiled springs 29 are attached to the ends of the levers 2S and at their opposite ends are also attached to the inner or free ends of the bracket-arms 27, said springs operating to turn the dies or rods 22 and normally hold the dies in the position shown in Fig. 4, in which position the dies are said to be open -that is to say, their channeled portions 24 are separated, so as to receive the male die, as will hereinafter appear.

The male diesare adjustably secured to the upper roll or cylindrical support in the same manner as the female dies, and each comprises a bed-plate 30, arranged longitudinallyon the roll and secured to plates 8, adjustably secured to disks 6, mounted on the shaft 3, as before described, the bed plate 30 being longitudinally grooved or channeled in its outer face, as at 31, in which groove or channel is fitted a bar or strip provided on its outer face with a longitudinal rib 31, that projects beyond the outer face of the bed-plate 30 and has formed on its outer edge an enlargement or laterally-projecting head 32. The male and female dies are so arranged on their respective rolls or cylindrical supports that once during each complete rotation of said rolls the male and female dies will register. The paper stock or board (indicated in the drawings by the numeral being fed between the two rolls and the female dies being normally open, or in the position shown in Fig. 4, as the male and female dies approach each other the male die engages the upper side of the stock and forces it into and between the grooved or channeled faces 24 of the female dies. At this point of the opera tion the preliminary bend in the stock necessary to form the crease is made. As the male and female dies approach nearer together the enlarged or headed edge of the male die presses the stock against the shoulders 25 of the female dies and compresses the stock about or against said head, and thus sets the preliminary bend given to the stock, and the head of the male die continuing to press against the shoulders 25 forces the latter inward or downward, thereby imparting to the female dies a partial rotary or oscillating movement. This movement of the female dies causes the shoulders 24 to approach each other, thereby folding the stock against the opposite sides of the male die, and when the male and female dies arrive at a pointwhere they are diametrically opposed the shoulders or ribs 24 pinch the stock against the sides of the rib 31 to impart the final set to the crease. As the male and female dies recede from one another the springs 29 contract and through the medium of the levers 28 oscillate the female dies in a reverse direction to that before described and open said dies to permit the withdrawal of the creased stock therefrom. This completes the operation and imparts to the blank a transverse crease or, more correctly speaking, forms a beaded or ribbed corrugation in the stock.

As shown most clearly in Fig. 1 of the drawings, two pairs of female dies are arranged on the lower roll and two corresponding dies are arranged on the upper roll, whereby when a blank is fed between the two rolls two transverse creases will be formed in the blank, one near each end. Byloosening the set-screws 12 the bed-plates carrying the dies can be adjusted on the rolls tospace the dies the proper distances apart, so as to cause them to crease the board at the desired points.

The segmental plates 15 extend from one die or pair of dies to the other and form a support for the stock intermediate the dies as it is fed between the rolls.

A feed-table 34 is arranged above the upper roll, and the latter is provided with gripping-fingers 35, of ordinary and well-known construction and similar in all respects to the Well-known gripping-fingers employed on rotary printing-presses. As the blanks are fed by the operator from the feed-table the grippers grasp the forward edge of the blank and draw it around with the upper roll. Each side of the frame 1 is provided with two brackets 36, in which are fixed transverse rods 37, and to said rods are fixed the ends of curved metallic straps 38, that are concentric with the upper roll and operate as guides to hold the blanks wrapped or bent around the roll as they are fed between the two rolls.

Supported in rearwardly-extending brackets 39, forming a part of or attached to the machine-frame 1,is the blank-trimmingmechlIO ' anism, constructed as follows: J ournaled in brackets 39 are two pairs of feed-rolls 42 and 43, one pair of said rolls being disposed in front of the trimmers and the other pair in rear thereof. The trimming-rolls are geared together by gear-wheels 44, and the feed-rolls 42 and 43 are respectively geared together by pinions 45 and 46. Mounted on a stub-shaft journaled in one of the brackets 39 is a pinion 47, (see Fig. 2,) that gears with the gearwheel 4 on the lower creasing-roll, and also mounted on said stubshaft is a pinion 48, that gears with one each of the gears 44 and 46. An idler-pinion 49 gears one of the gears 44 to one of the pinions 45. It will be obvious that motion will beimparted from the gearwheel 4, through the medium of the train of gearing described, to the feed-rolls and trim ming-rolls in such manner as to draw the blanks from between the creasing-rolls and feed them between the rotary trimmingknives.

In practice the knives or cutters are mounted on their shafts 40 in such manner that they may be adjusted longitudinally on said shafts, as by means of set-screws, for example.

The operation of the creasing-dies having been described in detail, the operation of the entire machine may be very briefly described as follows: The blanks are fed from the feedtable between the creasing-rolls in the manner before described and as each blank passes between said rolls it is transversely creased near each end. From the creasing-rolls, the blank is fed between the trimming-rolls,which operate to trim or cutoff evenly the opposite edges or sides of the blank. After all the blanks have been fed through the machine in the manner described the dies are again adjusted on the creasing-rolls and the cutters on the trimming-rolls, and the blanks are then once more passed through the machine, the blanks during this second operation being turned at right angles to the position they were fed during the first operation. The blanks are thus again creased and trimmed in a direction transverselyto the creases formed during the first operation. This finishes the blanks so far as creasing and trimming them is concerned.

I have shown and described the dies as being mountedv on rotary rolls or cylindrical supports; but itwill be evident that they could I be arranged to reciprocate toward and from each other. I have also shown each creasing-roll provided with twodies or pairs of dies; but it is obvious that the number of dies employed may be varied to suit the particular purposes in hand.

Many othervariations or alterations in the construction and arrangement shown and described will present themselves to those skilled in the art, and I wish it to be understood that I do not limit myself to such details of construction and arrangement excepting as hereinafter specifically pointed out in the claims.

Having described my invention, what I claim is-' 1. Ina creasing-machine, the combination with a male die consisting of a longitudinal rib, of a female die comprising two rotatable parallel longitudinal bars each provided with a longitudinal rib or shoulder, and means for projecting the male die simultaneously betweenand into contact with the shoulders of both bars of the female die to cause the latter to rotate axially and embrace opposite sides of. the male die.

2. In a creasing-machine the combination with a male die consisting of a longitudinal rib, of a female die comprising two segmental rotatable parallel longitudinal bars each provided with two longitudinal ribs or shoulders, the shoulders of one bar being arranged to register with the shoulders of the other bar when said bars are partially rotated, and means for projecting the male die between said bars and against one pair of said shoulders whereby the bars are turned and the other pair of shoulders pressed against the Opposite sides of the male die, substantially as described.

3. In a creasing-machine, the combination with a male die consisting of a longitudinal .one bar being arranged to register with the shoulders of the other bar when said bars are partially rotated, and meansfor projecting the male die between said. bars and against the shoulders normally farthest removed from the male die, substantially as described.

4. In a creasing-machine, the combination with a male die consisting of a longitudinal rib having an enlarged operative edge, of a female die comprising two rotatable parallel longitudinal bars each provided with two longitudinal ribs or shoulders, means for normally holding the outermost shoulders separated, and means for projecting the male die between said bars and against the innermost shoulders to partially rotate the bars and cause the outermost shoulders to move toward the opposite sides of the male die, substantially as described.

5. In a creasing-machine, the combination with a male die consisting of a longitudinal rib having an enlarged operative edge, of a female die comprising two rotatable parallel longitudinal bars each provided with two longitudinal ribs or shoulders, said bars being geared together to turnin unison, meansfor normally holding the outermost shoulders separated, and means for projecting the male die between said bars and against the innermost shoulders to partially rotate the bars and cause the outermost shoulders to approach the opposite sides of the male die, substantially as described.

6. In a creasing-machine, the combination with a male die consisting of a longitudinal rib having an enlarged operative edge, of a female die comprising two parallel longitudinal bars rotatably journaled at their ends in suitable bearings and each provided with two longitudinal ribs or shoulders, said bars being geared together to rotate in unison, levers fixed on the ends of said bars, coiled springs attached to the ends of said levers and a fixed support and operating to turn said bars and separate the outermost shoulders, and means for projecting the male die between the bars and against the innermost shoulders, substantially as described.

7. In a creasing-machine, the combination with a male die consisting of a longitudinal rib, of a female die comprising two rotatable longitudinal rods arranged side by side and each longitudinally grooved or channeled, the grooved portions of said rods being arranged adjacent to one another; means arranged to normally turn the grooved faces of the rods away from each other, and means for projecting the male, die between said grooved faces and against the innermost shoulders of the latter, substantially as described.

8. In a creasing-machine the combination with a male die consisting of a longitudinal rib having a head on its operative edge, of a female die comprising two rotatable longitudinal rods arranged side by side and each longitudinally grooved or channeled, the channeled faces of said rods being/disposed adjacent to one another, means arranged to normally turn the channeled faces away from one another, and means for projecting the head of the male die between the chaneled faces of the rods and against the innermost shoulders thereof, substantially as described.

9. In a creasing-machine, the combination with a male die consisting of a longitudinal rib, of a female die comprising two segmentshaped longitudinal rods rotatably arranged side by side and each provided with a longitudinal rib or shoulder, said shoulders being arranged to register with each other when the rods are turned, means for normally holding the shoulders separated, means for projecting the male die between said shoulders, and means actuated by such movement of the male die for engaging and simultaneously turning the rods to cause the shoulders to press against the opposite sides of the male die, substantially as described.

10. In acreasing-machine, the combination with a male die consisting of a longitudinal rib provided with an enlarged operative edge, of a female die comprising two longitudinal rods rotatablyarranged side by side and each provided with a longitudinal rib or shoulder, said shoulders being arranged to register with one another when the rods are turned, means for normally holding the shoulders separated, means for projecting the enlarged edge of the male die between the shoulders, and means actuated by such movement of the male die for turning the rods to cause the shoulders to press against the opposite sides of the male die at a point above the enlarged edge thereof, substantially as described.

11. In a creasing-machine, the combination with two rotary cylindrical supports arranged parallel to one another of a male die fixed to the periphery of one of said supports and comprising a rib arranged longitudinally of said support, a female die fixed to the periphery of the other cylindrical support and comprising two rotatable rods arranged longitudinally on said support side by side and each having a longitudinal groove or channel, means for rotating the cylindrical supports in unison, the dies being so relatively arranged that when the supports are rotated the male die will be projected between the channeled faces of the rods and partially rotate the latter, and means for turning the rods in a reverse direction when the male die is withdrawn, substantially as described.

12. In acreasing-machine, the combination with two rotary cylindrical supports arranged parallel to one another and means for rotating them in unison, of a plurality of male dies fixed to the periphery of one of said supports and each comprising a rib arranged longitudinally of said support, a plurality of female dies fixed to the periphery of the other cylindrical support and each comprising two rotatable rods arranged longitudinally on said support side by side and each having a longitudinal groove or channel, means for adjusting the respective dies toward and from each other on their supports, the dies being so relatively arranged that during each rotation of the supports each male die will be projected between the channeled faces of the rods of a female die and partially rotate said rods, and means for turning said rods in a reverse direction when the male dies are withdrawn, substantially as described.

13. In acreasing-machine, the combination with a male die consisting of a longitudinal rib, of a female die comprising two parallel rods rotatable axially and having adjacent faces thereof cut away, and means for moving the male die between and withdrawing it from the female-die members, substantially as described. I

14. In a creasing-machine, the combination of a male die consisting of a longitudinal rib, of a female die comprising two longitudinally-parallel rods arranged to oscillate about their longitudinal axes and having adjacent faces thereof cut away, and means for bringing said dies together to press the material to be creased between the female-die members and the opposite sides of the male die, substantially as described.

15. In a creasing-machine, the combination with a male die consisting of a longitudinal rib, of a female die comprising two parallel rods rotatable axially and each having a cutaway portion, and means for bringing said vdies together to press the material to be creased between the adjacent cut-away portions of the die-rods and the opposite faces of the male die, substantially as described.

16. In a creasing-machine, the combination with a male die consisting of a rib, of a female die comprising two parallel and axiallyrotatable rods having adjacent cut-away portions, and means for bringing said dies together to project the male die between the female die and for separating said dies, substantially as described.

17. In a creasing-machine, the combination with a male die consisting of a rib, of a female die comprising two parallel and axiallyrotatable die members each having a cutaway portion, means for bringing said dies together to project the male die between the cu t-away portions of the female-die members, and means actuated by the movement of said male die for simultaneously oscillating the female-die members toward the male die, substantially as described.

18. In a creasing-machine, the combination with a male die consisting of a longitudinal rib, of a female die comprising two parallel longitudinal and axially-rotatable bars each having a cut-away portion, means for bringing said dies together to cause the male die to project between the cut-away portions of the female-die members, and means actuated by such movement for oscillating the femaledie members toward the opposite sides of the male die, substantially as described.

19. In a creasing-machine, the combination with two parallel rotary cylindrical supports respectively carrying a male and a female die, the male die consisting of a longitudinal rib and the female die comprising two parallel longitudinal and axially-rotatable bars, and means for rotating said supports to cause the male die to be projected between and Withdrawn from the female-die members, substantially as described.

20. In a creasing-machine, the combination with two parallel cylindrical supports, of a male die consisting of a rib longitudinally mounted on one of said supports, a female die longitudinally mounted on the other support and comprising two parallel bars rotatable axially on said support, and means for rotating said supports to project the male die between and withdraw it from the femaledie members to cause the latter to rotate axially, substantially as described.

21. In a creasing-machine, the combination with two parallel cylindrical supports, of a male die consisting of a rib longitudinally mounted on one of said supports, a female die longitudinally mounted on the other support and comprising two parallel and axiallyrotatable die members, and means for rotat ing the supports in unison to cause the male die to be projected between and withdrawn from the female bars, the male die being arranged to engage and oscillate the female-die members, substantially as described.

22. In a creasing-machine, the combination with two coacting cylindrical supports, of a male die consisting of a rib longitudinally mounted on one of said supports, and a female die longitudinally mounted on the other support and comprising two parallel and axially-rotatable bars, the male die being arranged to project between and simultaneously rotate the two female-die members when said dies are caused to register, sub-' stantially as described.

23. In a creasing-machine, the combination with two coacting cylindrical supports, of a male die consisting of a rib longitudinally mounted on one of said supports, a female die longitudinally mounted on the other support and comprising two parallel and axiallyrotatable bars between which the male die is arranged to project when said dies are caused to register and trimming mechanism operating to trim the longitudinal edges or sides of the material as the latter leaves the creasing mechanism, substantially as described.

24. In a creasing-machine, the combination with two coacting cylindrical supports, of a male die consisting of a rib longitudinally mounted on one of said supports,,a female die longitudinally mounted on the other support and comprising two parallel and axiallyrotatable bars having cut-away portions between which the male member is arranged to project when said dies are caused to register, and rotary trimming-knives actuated by said cylindrical supports and arranged to trim the longitudinal edges or sides of the material as the latter leaves the creasing mechanism,

substantially as described.

25. In a creasing-machine, the combination with two coacting rotary supports, of a male die consisting of a rib longitudinally mounted on one of said supports, a female die longitudinally mounted on the other support and comprising two axially-rotatable bars mounted in parallelism and arranged to embrace the opposite sides of the male die when the latter is brought into engagement therewith, and trimming mechanism operating to trim orcut at right angles to the creasing-dies, substantially as described.

26. In a creasing-machine, the combination with two coacting rotary supports, ofa male die consisting of a rib longitudinally mounted on one of said supports, a'female die longitudinally mounted on the other support and com prising two axially-rotatable bars arranged in parallelism and adapted to embrace the opposite sides of the male die when the latter is projected between said members of the fe- In testimony whereof I have hereunto set male die,a feed-table arranged adjacent to one my hand in presence of two subscribing witof the rotary supports, and gripping means nesses.

carried by said support operating to grip the JOHN KING, JR. material to be creased and carry it between Witnesses:

the two supports and dies, substantially as LEWIS W'. COLFELT,

described. 1 ROBERT S. LOCHIEL. 

